.secondSection {
  padding-top: 56px;
  position: relative;
  ul {
    top: 0;
    width: 100%;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-around;
    position: absolute;
    background: #e36c3f;
    &.fixed {
      position: fixed;
    }
    li {
      position: relative;
      list-style: none;
      color: #fff;
      .line {
        position: absolute;
        bottom: -8px;
        left: 50%;
        transform: translateX(-50%);
        height: 4px;
        width: 100%;
        background: #eedf0d;
        opacity: 0;
        transition: opacity .3s;
        border-radius: 5px;
      }
      .visible {
        opacity: 1;
      }
    }

  }
  section {
    padding: 16px;
    scroll-margin: 56px;
    h2 {
      color: #fff;
    }
    img {
      width: 100%;
      margin-top: 16px;
      border-radius: 6px;
    }
  }
  //App内打开
  .btnWrapper {
    position: fixed;
    bottom: 0;
    padding: 0 16px;
    height: 64px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(0deg, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%);
    opacity: 0;
    transform: translateY(64px);
    transition: opacity .3s,transform .5s;
    &.visible {
      opacity: 1;
      transform: translateY(0);
    }
    img {
      width: 100px;
    }
    button {
      padding: 8px 16px;
      border: none;
      color: white;
      border-radius: 50px;
      background: #fb7299;
    }
  }
}
